Biogeochemistry and Physics: Geochemistry + Geophysics

Any environment related study such as biogeochemistry start to explanation with an event happened in 3.5 billion of years ago, which are the oxygen creation via photosynthesis. This event is very important as it then change the earth atmosphere which then support the life on earth. Cyanobacteria responsible to make this event happenned.

The different perspective (in popular term) that used between environment and geology (and energy) study is because of the different objective of this study. Environment tend to focus with Chemical aspect (Geochemistry), where earth is seen as natural chemical reaction (Schlesinger 2013) and Oxygen is the most important thing in our life. While energy focusing Geophysics where extraction of natural resources is be a priority.